The digitals would be more efficient. Electricity wise. Magnetics would probably kick their ass in reliablity.

but, the digitals are getting better. Most magnetic ballasts are UL rated. Most digitals are not. (Get one made in USA/Canada...not China)

I sleep better at night with UL rated products....:thumbsup:
Dutch Pimp Reviewed by Dutch Pimp on . MH vs. HPS Ok...a good friend of mine and I started growing at the same time. We both do a good amount of research and he found some info on these two lamp types that I want to run past everyone: MH lamps: are used primarily for veg growth right? Well what we read was that MH lamps actually dictate how bulky the plant gets, but most importantly...also dictates the amount of trics buds will develop, the overall potency of the bud from what I understand. Now HPS lamps: These lamps seemed to be Rating: 5